Carrier tube



Apfii'z, i926. 1,581,252

P. A. UDALL CARRIER TUBE original FiledDe 24, 1923 ATTONEY- lwill be.especially suitable', for ,use

Patented 2Q, 1926.

- Unire-o ,afPAirEsNi @ciw-loe.

PHILLIP A. UDALL, O FNEW`YQRK, ASSIGINOR-TO G. vSc G. ATLAS SYSTEMS,INC., A- GORBOBAVTIONYOF NEW '.YO`RK.

Giannini; .TUBE

`Tfork city, in thecouiity of New Yorlrzand VState 'of New AYork, ,herenrehtedoertain new and useful liiiproveiiientsinfCarijier Tubes, Of WhQhthe .following is .a..SP ,C1-f021 tion.

My invention ,relates :to .a ,new arid ini proved carrie-r tube. f

Oneoftlie ob'ects. ofgny inventionA is to inalieahewend yimprovedv,carrier tubewliich l Iin pneuniatic cerryingderices.

Another 'obfect ot iny invention is to Ade- -vise a new andiinpioyedcarrier -tube having` a iiieztal shank .orV body and ,headsvinade ,of rubber or aiiyother resilient `niaterijfil.

,Another object Vofxiny ,invention is to.provide a new and improvedmethod lof nialing an article of this character.

Another. object of niy inventionis toNprovidey a. ymethod of makinganafrticle offthis lcharacter anche. new ,and iniproyed inetliod ofmaking this erticle. whereby the inetal sli-ank and the resilient'headseanbe readily connected in a firno and reliable., iiiauniierv andcan also be readilydisconnected.

Other objects, of gniy inyeiition ,will be. .Set f vforth v in theIiollowing description drawlllgsand showing Vone of the lforms ofapparatus Which can be AVused for carrying out .my

Vmethod.

Fig. .2 is a sectional Vieiyparti'allyin elevation and showing; ingreaterjdetailsonie l of the parts illustrated in Fig. l.

` v1 the 'lineB-'B of F 4.

Fig. 4 is abottoin View pi' Fig. 3. y Figi 5 iis a .detailsectionalyieiv.showing onestep in the method otconneeting there--silient head to the inet-a1 shank.

."Fig. 6 is a top View of Fig. 5.

Fig. l is an elevation partially in section Fig. 7 is a section ontlieiiiieT-ot Figz is a top View of adevice or toolv used for`separating the various parts ofthe device. Y

A*Figs 9, and 10 and'l show a tool which.

can be used for detachiiig the head of the tiibe troni the-body thereof.jFig. 41l.y shows how tlieltool shown in Fig.

12 is applied. 'v i The carrier tube has a metal body, 'cor shank 2&1which iis open; at oiievsidef'theijfeof so that thel object to be`,con-Ve"yed 'can be readily placed Withintheti'ibe. i 'v'llliis ynietalshank or is of lthe,,ordi-naryand i ellnoi'r'n shape. The said shankfthas allresilient heads 23 of largerdiaiiieter"connected abileresiliYeiit/k material so vas vto liar/'e fan .tight Ht .iiithefriieiiliiete tube esleelly sl'iOWii in Fig- 15,' eechjhesdl-23. hasa re ,ess 'haring a lretaiiiing ring 30. 4vThis retaining riiigBUi'liasarecess 31 lievingtiiio rectanguler port-ions in thel body oi' said'ringforrned by a. vsuitable stamping operati/on, as 4shown to beconnected.` Each retaiiiiiig fijin'g 3,0

; co-operates .vi/itliai1` inner retaining ring'zl 25 wlii'clriitsgaiiisti the adjacent end I,of/the iii-etal body as 'shown` iirFig. f7each .einer fetiiimlielliie tive Stiiiiirfiiit vtongues ot' prongs. 26and 2T so ,that slots '28 land 29 are oinied'in each retaining ring y25. 'Each endfrot the AbodyA Zlfhfas'opeiiiiigs through wluchftlieprQngs'HZairdQ? cia'n progect 4and each head 2K3/has siinilaropeningsand corresponding openings are. orined iii-the recessed part 3l.

'-Hence, aftereacli outer retaining rinogBO v is pressed lirinly in thedirectionof' jacent inner ring '25 While itis prevented :fromtiirniiiga1id tlie ends ot the `prongs "2G and A27 are then bent down as'illustrated in 2`While saidfring H30.is'ipreireni ed `troni turning,the said 'bent down ends lrare forced againstthe adgacent innerretaining' A, ring 25 and' the parts ,are Very firiiily c held in`position. Each prong then ,has a`v vertical portion and a horizontalbent-'down portion, ,saidbent down portion Il i'eing'-in one of ltheYrectangular Avprtiolns of recess 31.

In order to Inzike'tli'is'Vz i.rticlel the ,apparatus .shownYinfFig'sQl, 2.A dhd13 inay be"iised altl`i'oii'gh'iiiy niethod' can bepracticed by various forms of apparatus. A bracket is connected to anyconvenient support and this has a solid projecting portion 10EL uponwhich the end of the body 24 is adapted to rest.

A lever 12 has a rod 11 pivoted thereto by means'of a pin 13. The rod 11has a recess at its lower end and the lower rod 14 is held in saidrecess by means of the pin 14. A head 15 is slidably n'iounted at thebottom of th'e lower rod 14 and a compression spring 1G is mounted on.t-he rod 14 between the bottom of the rod 11 and the top of the slidablehead 15. rllhe bot tom portion of the lower rod 14 has a vertical groove17 into which a screw 13 mounted upon the slidable head 15 tits, wherebyproper guiding means are provided for the movement of the head 15. Thehead 15 has projections 21 and 22 at 'thc bottom thereof as shown inFig. 3 and Fig. 4.

As shown in Fig. 3, the bottom of the rod 14 has a small enlargementupon which the top of the slidable head 15 fits so as to limit the lowermovement of the head 15 and prevent it from dropping olf the rod 14.rlhe bottom of the rod 14 has projections 19 and 2O as shown in Fig. 3and Fig. 4.

When the parts are to be assembled, the operator actuates the lever 12with one hand and with the other hand he turns the shank or shell 24together with the parts above it until he feels that the projections 21and 22 of the head 15 have entered or become located within therectangular portions of the recess 31 of the outer retaining ring 30.These projections 21 and 22 then tit snugly within the angular portionsof the said recess 31 so as to prevent the outer ring from turning whilethe ends of the prongs 26 and 27 are being bent downwardly in oppositedirections. Vithout this part of the device the bending down o1 the endsof said prongs 26 and 27 would cause the outer ring 30 to turn so thatthe prongs 26 and 27 would be bent or twisted out of the desired shapeand this would make it almost impossible to separate the parts again.

After the operator has properly located the projections 21 and 22 withint-he angular portion of the recess 31 so that they are directly adjacentthe ends of the prongs 26 and 27, he then presses down more firmly uponthe lever 12. The further downward movement of the lever 12 forces therods 11 and 14 downwardly so as to compress the spring 16. This producesa compression of the resilient material of the head `23 while the finaloperations are performed for assembling the parts. The projections 1S)and of t-he rod 14 then contact with the ends of the prongs 26 and 27 soas to bend them down at right angles to the upstanding parts of the saidprongs.

The resulting device is free from screws and objectionable projectingparts within the body 24 as the inner rings 25 present a substantiallysmooth surface so that paper objects can be easily placed within thecompleted article and can be easily taken out without any tearing orjamming.

In using these devices it is important to be able to readily remove theresilient heads 23 and replace them by new heads because there isconsiderable wear upon these resilient heads due to the fact that theymust tit closely within the pneumatic tubes and must move withconsiderable velocity within these tubes.

The improved construction above mentioned which employs aminimum numberof parts enables the separation with great. facility.

I provide an additional tool or device 32, illustrated in Fig. 8, tofacilitate the separation of the parts. This device 32 consistssubstantially of a washer having two downwardly bent prongs 33 and twoupward lugs or teeth 34. The washer 32 is adapted to lit upon the finger10a and the prongs 33 iit within recesses 10b of the finger 10a sothatthe washer 32 is prevented from turning.

When the tube to be separated is then placed upon the finger 10a asillustrated in Fig. 17 for example, the teeth 34 fit within the slots 23and 29 of the inner retaining ring so that the tube cannot turn, whereaswhen the parts were assembled it could be freely turned by the hand ofthe operator because the washer 32 was not used during the assemblingoperation.

A. tool of the type shown in Figs. 9, 10, and 12 is now employed toupwardly bend the bent down ends of the prongs 26 and 27 The rod 11 canbe removed from the device shown in Fig. 1 by removing the detachablepin 10 and sliding out the parts connected to the rod 11 upwardlythrough the guide 11.

The shank 35 of the separating tool can now be fitted through the guide11 and this separating tool can then be turned by the angle bar 36 whichhas a downwardly bent part 36 which limits the turning of the tool 35 bycontacting with the member 10. lith t-he tube in the position shown inFig. 1, the tool 35 is now moved downwardly until the teeth 37 aredirectly behind the bent down ends. of the prongs 26 and 27. These teeth37 enter the recess 31 so as to directly act upon the bent down ends ofthe prongs 26 and 27. lVhen the tool 35 is turned the ends of the prongs26 land 27 are straightened because the tube cannot revolve due to theuse of the washer 32.

It is therefore possible to separate the parts of a tube in a very shorttime and with the use of substantially the same mechanism that wasemployed for the original assembling of the parts.

It is clear that my device is made of a minimum number of parts and thata minimum number of operations and a minimum of time are required tomake it or separate it.

I have shown preferred embodiment of my invention, but it is clear thatnumerous changes and omissions could be made Without departing from itsspirit.

V'Ihus it would be possible to form the top of body portion 24 withprongs such as are here illustrated in connection with inner retainingring 25. In either construction, the fastening means for securing theresilient head to the body portion would be free from any projectingparts within the said body portion.

I claim:

l. A method connecting a resilient head portion provided with a recesshaving a rigid outer retaining ring located therein, to the body portionof a pneumatic carrier having an inner retaining ring at the endthereof, which consists in forcing the said outer rings towards the saidinner ring and then securing said outer ring `in position while theresilient material of the head remains compressed.

2. A method e according to claim l in which the outer ring is preventedfrom revolving while the said outer ring is forced kin a directiontowards said inner ring.

In testimony whereof I hereunto affix my l signature.

PHILLIP A. UDALL.

